Buffalo Illinois Climate Data

Monthly Average Climate Data for Buffalo Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.6 °F35.1 °F2.09 in.
February21.6 °F39.9 °F1.95 in.
March30.8 °F51.5 °F2.66 in.
April41.8 °F64.3 °F4.01 in.
May53.3 °F74.4 °F4.56 in.
June62.2 °F83.0 °F4.59 in.
July65.2 °F85.9 °F3.77 in.
August63.4 °F84.5 °F3.31 in.
September54.8 °F79.4 °F3.1 in.
October43.2 °F66.9 °F3.23 in.
November32.5 °F52.0 °F2.95 in.
December24.1 °F40.1 °F2.16 in.
Annual42.6 °F63.1 °F38.38 in.

Climate Data for Buffalo Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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